12113212032 has 96 divisors (see below), whose sum is σ = 34987504500. Its totient is φ = 4022624256.

The previous prime is 12113212021. The next prime is 12113212049. The reversal of 12113212032 is 23021231121.

It can be written as a sum of positive squares in 2 ways, for example, as 10655194176 + 1458017856 = 103224^2 + 38184^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12113211996 and 12113212014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290344 + ... + 329432.

Almost surely, 2^12113212032 is an apocalyptic number.

12113212032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12113212032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17493752250).

12113212032 is an abundant number, since it is smaller than the sum of its proper divisors (22874292468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12113212032 is a wasteful number, since it uses less digits than its factorization.

12113212032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39378 (or 39363 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12113212032 its reverse (23021231121), we get a palindrome (35134443153).

The spelling of 12113212032 in words is "twelve billion, one hundred thirteen million, two hundred twelve thousand, thirty-two".